[tracker] Fix compile error in the vorbis extractor.

[Carlos Garnacho <carlosg src gnome org>]

commit a0e84553011bba6ecf2adbdfa0741bbaed1d298c
Author: Carlos Garnacho <carlos lanedo com>
Date:   Wed Feb 3 17:50:45 2010 +0100

    Fix compile error in the vorbis extractor.

 src/tracker-extract/tracker-extract-vorbis.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/tracker-extract/tracker-extract-vorbis.c b/src/tracker-extract/tracker-extract-vorbis.c
index 717d34d..0e6188d 100644
--- a/src/tracker-extract/tracker-extract-vorbis.c
+++ b/src/tracker-extract/tracker-extract-vorbis.c
@@ -189,9 +189,9 @@ extract_vorbis (const char *uri,
 			tracker_sparql_builder_object_variable (preupdate, "unknown");
 			tracker_sparql_builder_where_close (preupdate);
 
-			tracker_sparql_builder_insert_open (preupdate, preupdate);
+			tracker_sparql_builder_insert_open (preupdate, NULL);
 
-			tracker_sparql_builder_subject_iri (preupdate, md.album_uri);
+			tracker_sparql_builder_subject_iri (preupdate, album_uri);
 			tracker_sparql_builder_predicate (metadata, "nmm:albumTrackCount");
 			tracker_sparql_builder_object_unvalidated (metadata, vorbis_data.trackcount);